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Using Computer Example 3.5 as a guide, develop a simulation program for PAM and PPM
Example 3.5
In this example we consider the time-domain waveforms corresponding to VSB modulation and consider demodulation using envelope detection or carrier reinsertion. We assume the same message signal as was assumed Example 3.4. In other words,
Example 3.4
The preceding example demonstrated the required amplitude response of the VSB filter. We now consider the phase response.
Assume that the VSB filter has the following amplitude and phase responses for f > 0:
A current i(t) = 10r(t) mA is applied to a 10 mF capacitor for t > 0, where r(t) is the ramp function. At t= 0, the capacitor voltage was zero. The voltage across the capacitor at t = 2 s is
What is the lowest value of Vcc for which the BJT will always remain in the active region. Sketch Vl versus time for a Vcc slightly lower than this limit. Which BJT region(saturationor cuttoff) limits the output voltage swing.
An ideal p-n junction diode has saturation current Is = 3e-15 A. Calculate the diode current.
Two magnetically-coupled coils are wrapped around a mutualnon-magnetic material. The coefficient of coupling betweenthe coils is 0.388. L1 has 500 turns and a value of 23.75mH while L2 has700 turns and a value of13.70mH.
The power factor of a load connected to a 120-V 60-Hz source is raised from 0.866 lagging to 0.966 leading by connecting a 110.5-F capacitor in parallel with the load. Determine the load current I1 and the circuit current IT
If one of the resistors in a parallel circuit were shorted, what would you expect to see happen and could a shorted component in a parallel circuit cause an open to occur elsewhere.
A computer employs RAM chips of 256 x 8and ROM chips of 1024 x 8. The computer system needs 2K bytes of RAM, 4K bytes of ROM, and four interface units, each with four registers. A memory-mapped I/0 configuration is used.
The mean and the variance of a binomial distribution with parameters n and theta are 12 and 3. Find the probabilities: a. (P X or equal 7).
When placed in series a coil and capacitor resonate at a fequency of 2251Hz and when placed in parallel they resonate at a frequency of 2228Hz. At parallel resonance it is also found that a current of 0.005A flows from the supply when the supply i..
a 10kW 220 V single phase ac motor is operating at .7 lagging power factor. Find the value of the capacitor that needs to be connected in parallel with the motor, if the power factor is to be improved to .95 lagging
a) show the truth table b) show an algebraic expression in sum of minterms fom. c) show a minimum sum of products expression d) show the minterms of the complement of each function in numeric form.
the series resistances causes a voltage dropwhen a current is drawn from a solar cell. by convention the positive
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